A Belated Welcome!
I am glad you posted again. I am impressed that even after drinking again, you are here and committed to sobriety again. It can be hard at times. It does get easier.
I also had happy memories that involved alcohol. But like you said, the happy part was who I was with or the activity. I am shy too so related to what you wrote earlier about using alcohol to feel less shy. But there have to be better ways than poisoning ourselves.
I hope you keep posting!